Track-gage.



P. S. ROLLER.

TRACK GAGE.

APPLIOATION FILED SEPT.18,1908.

Patented July 6, 1909.

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FUN i eTliTFiti PATENT @FFIQF.

PETER S. ROli liElt, OF ll'lOU'Nl JACKSON, VIRGINIA.

TRACK-GAGE No. 926,770. Specification of Letters Patent. Patented July 6, 1909.

Application filed September 18, 1908. Serial No. 453,590.

To all whomttmoy concern: \considered. The [rec end ol the straight Be it known that 1, P1111111 S. lloLLiin, edge carries clamping bolt 7 with a set citizen of the United States, residing at l screw nounted thereon, the said clamping Mount Jackson, in the county ol' Shenanl bolt being designed to engage a scale bar 60 doah and State of Virginia, have invented l which is pivotally connected at one end to certain new and useful Improvements in l the arm 1 where the arm joins the yoke 3; Track-Gr ws, of which the 'l'ollowing is a the said scale bar being designed to swing in s ecil'ication. l a vertical plane, and being arr-urged, when This invention comprehends certain new l not desired {or use, to be swung downwardly 5 and useful improvements in gages and re in a pocket 9 formed in the arm 1 so that it lates particularly to an improved construcwill then be entirely out of the wa The tion of track combining in the one in yoke 3 is lOllllfll with a recess 10 designed strument all oi the functions o'l' a and to receive. the set screw ot the clamping bo t leveling board, doing away with the neccs- 7 when the straight edge (5 is swung down- 70 sity for a separate instrument [or use in wardly to an inoperative position, it being leveling the track, the present device being particularly noted that when the straight designed primarily for determining t re edge and scale bar are not in use and are roper elevation of the outside rail on curves held in their inoperative positions relative to of diilerent degrees, as well in determining the arm and yoke, there will be no projecting 7 whether or not the two rails are the proper parts whatever to interfere with the use of distance apart. the device as a simple track gage.

For a in l understanding oi the invention, l 11 designates a spirit level which is pro reference is to be had to the following dc vidcd on one side with nibs 12 designed to scription and accompanying drawings in engage the straight edge 6 as clearly illusgo which: trated in Fig. 5, a clamping screw 13 being Figure 1 is a side elevation of my improved mounted on an extension or racket oi the track gage illustrating one application therccase ol the spirit level and designed to imof; Fig. 2 is a similar view illustrating an pingc against the straight edge so as to seother application; Fig. 3 is a top plan view curely hold the spirit level thereon; preier- 5 of the yoke; Fig. i is a transverse sectional ably the straight edge is formed with a slight view through the arm of the device; Fig. 5 1S indentation 14 in which the clamping screw a similar view through the straight edge illus- 13 works. trating the spirit level secured thereto; and, In the practical use of my improved track Fig. 6 is a detail sectional view illustrating gage, it is to be understood that the scale bar 9 the adjustable connection between the 8 contains graduations in degrees and min straight edge and the scale bar. utes which are laid oil thereon according to Corresponding and like parts are referred the accepted 'lormulzc that may be worker to in the following description and indicated out according to the radius ot a curve, the in all the views of the accompanying drawgage of the track, and the velocity of a car 5 4o ings by the same reference characters. per minute in determining the proper eleva- My improved track gage comprises in arm tion of the outer rail at the curve. With 1 which is provided at one end with a dethis understanding, it will be seen that when ending lug 2 forming an outwardly facing the gage 18 applied to a track at a curve with shoulder designed to engage the inner edge the yoke 15 engaging the inner rail, the proper 00 4.5 of the tread surface of the outside rail of a elevation of the outer rail may be at once railroad track, said arm being provided at easily determined by raising the free end of its opposite end with a yoke 23 the members the straight edge until it engages the upof which are correspondingly provided with wardly extending scale bar at the proper lugs 4 designed to engage the inner edge 0t graduation according to the degree of the the tread surface oi the inner rail. The arm curve; then when the spirit level is securec 1 is formed in one side with a longitudinally to the straight edge, the outer rail is raised extending and upwardly lacing recess 5 in until the straight edge assumes a true level which a straight edge 6 is pivoted L t one end, osition which will determme the proper the straight edge being pivot-ally connected elevation oi the outer rail. VJhen the device 5 to the arm at the outer end of the latter, the is used on straight stretches of track, the position oi the device during operation being straight edge and scale bar are swung to an inoperative position and the spirit level may rest loosely upon the upper edge of the arm 1 to determine Whether or not the two rails are level or Whether one or the other needs to be raised.

s1mdurable and efficient construction of age and leveling device com. ined, embodies cenlpar tively few -e easily and which may manufactured and readily be used by any track man Without any special of mechanics.

P traci: which 1,"! that may assembled ordinary rnowledge parts Having thus described the invention, What is claimed as new is 1. a track age comprising an arm p vided with a longitudinally extending recess, a straightedge pivotally thereto and movable in a vertical plane and arranged the arm to b to the arm to move about a horizontal axis and designed to be accommodated in said pocket, a clamping bolt carried by the free end of said straight edge and arranged to connect the same to the scale bar, and a spirit level carried by said straight edge.

A track gage comprising an arm, a

i pocket, 2. scale and designed to beYc pocket, means for conne edge to the scale bar, and lied by the straight edge.

I). A device of the character comprising tudinally extending recess, a straight edge pivotally connected to the arm to move in a vertical plane and arranged to be accommodated in said recess, the arm being formed at the inner side of said straight edge with a bar pivotally connected at one end to the arm to move about a horizontal axis esigned to dated in said pocket, a clamping by the tree ranged the bolt being a spirit level nection to the straight edge.

In testimcn r whereof i my signature in presence of two witnesses.

described, an arl'n, provided with a longiprovided with a set screw, and designed for removable con PETER S. ROLLER. [L. s.] ffitnesscs:

HOWARD GOLLADAY, DAVID I". liaenr. 

